Unique Academic Board Solutions for Exercise 1: Exercise 1

You are given a question and two statements. Identify which of the statement(s) is/are necessary/sufficient to answer the question.

Shailu has $15$ boxes of articles of equal weight. What is the total weight of the $15$ boxes?

Statements:

I. One-third of the weight of a box is $150 g$.

II. The bags contain rice.

The salaries of Charan and Rajat are in the ratio of $5 : 4$. If the salary of each increases by $Rs. 3000$, then the new ratio becomes $6 : 5$. What is Charan's salary?

Solve for $x : x$ $N :$ ${\left(x-4\right)}^2-36=0$

Anish is thrice as old as his son and the sum of their ages is $48$ yr. find Anish's age.

Find the length (in metres) of shadow of a building, if the sun's shadow increases by $10 m$ when the angle of elevation of the sun decreases from ${60}^{°}$ to ${45}^{°}$.

If$\frac{1332}{145}=9.19$,then what is the value of $\frac{133.24}{9.19}$?

The given bar graph shows the information about results in the National level entrance exam by the institute "ABC" for the last $5$ years. Read the bar graph and answer the questions: In the year $2014$, how many ranks were scored from institute "ABC" ?

$\frac{189}{135}$ when written in the simplest form is: